Key-seat-cutting machine



No. s|3,894. j Patented ren. 7,4899.

m. a. H. vif.. mamon. KEY SEAT CUTTING MACHINE.

(Application led Dec. 8, 1897.) (No Model.) 3 Sheets-Sheet l'.

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No. 6|8,894. Patented Feb. 7, i899'. M. & H. E. NORTON.

KEY SEAT CUTTING MACHINE.

3 Sheets-Sheet 2.

(Appliation led Dec. 8, 1897.)

(N0 Model.)

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' Patented Feb. 7, |899.

no. s|a,s94.

M. &. H. E. MORTON. KEY SEAT GUTTING MACHINE. (Application Bled Dec. 8,1897.) l (Ilo Model.) 3 Sheds-Sheet 3.

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NITE STATES PATENT l Fri'cn.

KEY-SEAT-CUTTING MACHINE.

SPECIFICATION forming part of Lettrs Patent No. 618,894,01ated February'7, 189e.

Application filed December 8, 1897. Serial No. 661,154. (No model.)

Tall whom t may concern.-

Be it known that we, MATTHEW MORTON and HENRY F.. MORTON, citizens ofthe United States, residing at Muskegon Heights, county of Muskegon,State of Michigan, have invented a certain new and useful Improvement inKey-Seat-Cutting Machines; and we declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, which form apart of this specification.

Our invention has for its object certain new and useful improvements ina key-seatcutting machine, our` invention being designed to provide sucha machine of superior utility; and it consists of the construction,combination, and arrangement of devices hereinafter specified andclaimed, and illustrated in the accompanying drawings, in which- Figurel is a view, partly in side elevation and partly in section,illustrating features of our invention. Fig. 2 is a horizontal sectionon the line 2 2, Fig. l. Fig. 3 is a view in horizontal section on theline 3 3, Fig. l. Fig. 4. is a plan View. Fig. 5 is a detail View of thetilting frame. Fig. 6 is a'rear elevation of the same. Fig. 7 is avertical section on the line 7 7, Fig. l. Fig. Sis a partial rearelevation. Fig. 9 is a partial side elevation. Fig. l0 is a detail viewof the eccentric-shaft with related parts shown in dotted lines. Figliis a detail view of the crank. Fig. 12 is a detail view of the swivelfor the connecting-rod.

We carry out our invention as follows:

A represents a xed frame or support provided with a bed or table A.

B is a tilting frame having a jointed yengagement toward its base withthe fixed frame A. 'The iixed frame is preferably made bifurcated at itslower end, as indicated more particularly in Fig. 2, and is providedwith two sleeves or bearings C C', upon the adjacent ends of which thetilting frame is journaled, as indicated at Z7, Fig. 2, said tiltingframe being also preferably bifurcated toward its lower end, asindicated in Fig. 2.

D is a reciprocatory cutter-bar, preferably engaged in a holder D',provided toward its lower end with a rack-bar or toothed portion,

(indicated at D2.) The holder D reciprocates frame B, it will beunderstood, being jointedly supported upon the sleeves or bearings C C,may readily be adjusted, the cutter-bar D being carried therewith heldin the guides CZ d of said tiltingV frame. By this means the cutter-barmay be tilted to any desired angle in a ready and convenient manner.

The manner of engaging the cutter-bar in the holder D' forms no specialfeature of the present invention, as the cutter-bar may be engaged inany suitable holder in any desired manner. However, the holder D', asshown in the drawings, is held in tlie guides or ways of the tiltingframe by means of plates d', bolted thereto, as shown, the tilting framebeing preferably provided with lateral flanges B2, forming said ways andto which said plates are fulcrumed. The cutter-bar D is shown engagedwith the holder D by means of a plate D2, bolted to the holder, as bybolts cl2. Upon the upper surface or bed B of the tilting frame B issupported a post F, toward the top of which is engaged an arm G,projecting forward and against the cutter bar to form a support for theupper end of the cutter-bar to prevent the cutter-bar from springingaway from the work. This arm G is made adjustable upon the post in anysuitable manner, as by means of an encircling sleeve G and binding-screwG2. The forward end G3 of the arm G hasan adjustable connectiontherewith in any suitable manner, as

by means of an adjusting-nut g, having a threaded engagement upon theforward portion Gof the arm, the nut being held in the adjacent end ofthe arm G -by means of a binding-screw g. Upon the upper surface or bedB of the tilting frame is also engaged a bearing-plate b2, supporting abrace or bearing b against the rear of the cutter-bar, so that the baris braced adjacent to the bed of the machine and thereabove in a iirmand effectual manner. The post F is made adj ustable upon the tiltingframe B in any suitable manner. To this end the upper surface IOO or bedB of the tilting frame may be formed with elongated slots, (indicated inFig. tat b2 and in cross-section in Fig. 7,) through which the base ofthepost is bolted, as indicated at b3. The bearing-plate b may also beadjusted in a similar manner by means of bolts b4, engaged in a'grcoveb5 in the bed B.

Il represents the usual lever for forcing the cutter to the work, saidlever being provided with an operating-rod H and hand-wheel H2. Thetilting table may be adj ustably connected with said lever by means of arod J, connected with the lever and jointedly connected with a threadedbar J', as shown at j, the threaded portion J being engaged with anadjacent portion of the tilting frame and provided with a hand wheel J2.The bed B of the tilting frame is cut away, as indicated at B3, for thepassage of the lever H. We prefer to provide the frame B with a scale,(shown at K,) the main frame being provided with an index-finger K tofacilitate the adjustment of the tilting frame in desired position.

L indicates a gear or other work in which a key-seat is to be cut, thework being located upon the bed of the fixed frame. By adjusting theposition of the cutter-bar bymeans of the tilting frame it is evidentthat the operator can readily get a desired taper to the key-seat.

Our invention contemplates, moreover, means for automatically retractingthe cutter-bar, so that it may clear the work on its, return movement.To this end We provide, as shown in the accompanying drawings, a shaftM, having au eccentric or cam m at its upper end, said eccentric or cambeing suitably engaged with the lever H, as at m. The shaft M is engagedupon themaehine in any suitable manner, as by means of abracket N,bolted to the frame of the machine, the lever H being constructed withan orifice, as at h, to

receive the eccentric m. The dotted line 10 10 in Fig. l0 denotes thelongitudinal center line of the shaft, and it will be evident that whenthe said shaft is rotated upon its axis the eccentric will actuate thelever H accordingly. The shaft M may be engaged with the lever H in anysuitable manner, as

by means of a Washer m2 and nut m3 upon Upon the.

the upper extremity of said shaft. lower end of the shaft is'engaged acrank P, the crank being held in place in any suitable manner,as by anut mland intervening Washer m5. Vith the outer end of said crank isengaged a connecting-rod Q', as by means of j an intervenlng swivel Q,said connecting-rod,

being united to the ordinary shifting mechanism of the machine, astoashifting-bar Q2, connected with the belt-shifter Q4, as bya rod Q3,the bar Q2 being actuated in any suitable manner by the movement of thecutter-bar. The parts, it will be understood, are scadjusted and workedthat when the shifting mechanism is reversed the shaft M will bepartially rotated accordingly, thereby actuating the lever H in acorresponding manner,

permitting the cutter-bar in its return movement tc clear the work.

We prefer to make the bearing b acontinuous and removable bearing, saidbearing being of suihcient length to be continuous through the entirelength of cut for use in long deep hubs.

That we claim as our invention is- 1. The combination of a fixed frame,a tilting frame, formed with bearings engaged in the fixed frame, ashaft journaled in said bearings provided with a pinion intermediatesaid bearings, and a reciprocatory cutter provided with a rack meshingwith said pinion, for the purpose set forth.

2. The combination with a fixed frame, bearings engaged in the lowerportion of said frame, a tilting frame having a jointed engagement uponsaid bearings, a shaft journaled in said bearings provided with apinion, and a reciprocatory cutter actuated by said pinion, for thepurpose set forth. 3. The combination of a fixed frame a tiltling frameprovided with a bed, a reciprocatory cutter engaged with said tiltingframe and movable therewith, and an adjustable lbraoe-arm supported uponthe bed of the tilt- 4ling frame adjacent to the cutter, substantiallyas set forth.

l it.` The combination of a fixed frame, a tilting frame provided withguideways, a reciprocatory cutter-bar engaged with said ways `andmovable with the tilting frame, said tilting frame provided with anadjustable bracearm adjacent to the cutter-bar, for the pur- 'pose setforth. j

' 5. rlhe combination of a fixed frame, a tilt- `ing frame, acutter-bar'carried by the tilting 1frame and movable therewith,and abrace ,for the cutter supported upon the tilting frame above the bed ofthe tilting frame and `toward the upper end, of the cutter-bar, for thepurpose set forth.

G. The combination of a fixed frame, a tilting frame, a reciprocatorycutter carried by said tilting frame and movable therewith, a supportlocated upon the tilting frame, and a brace for the cutter carried bysaid support, `for the purpose set forth.

7. The combination of a fixed frame, a tiltfing frame, a reciprocatorycutter, an adjustable support upon the bed of the tilting frame, and anadjustable brace for the cutter carried by said support, for the purposeset forth.

4 8. The combination with a fixed frame, of `atilting frame, areciprocatory cutter, a brace :adjacent to the bed of the tilting frame,and an additional brace for the critter carried by the tilting frameabove the first-mentioned brace, for the purpose set forth.

9. The combination of a fixed frame, a tiltfing frame, a reciprocatorycutter-bar carried ,by said tilting frame and movable therewith, yandmeans to adjust the position of the tilting frame, for the purpose setforth.

10. The combination of a fixed frame, a tilting frame, a reciprocatorycutter, a lever to force the cutter to the Work, and an adjusting deviceconnected With said lever, for the vby the reversing mechanism,substantially as set forth.

12. In a key-seat-cutting machine, the combination of a frame, areciprocatory cutter, a lever to force the cutter to the Work, reversingmechanism, and a partially-rotatable eccentric or cam connected withsaid leverv and automatically actuated by the shifting mechanism,substantially as set forth.

In testimony whereof We sign this specification in the presence of twoWitnesses.

MATTHEW MORTON. HENRY E. MORTON.

Witnesses:

LILLIE M. BERGsTRoM, ALEXANDER VAN ZANTEN.

